Effective Cooling

[Bloodrayne]

Hi all,

My specs are:
Asus A7N8X-E
AMD Athlon XP 3000+ 'Barton Core' (standard heatsink/fan)
2 Gig RAM
Geforce FX5900 Ultra
Windows XP Home
and a rather nice Lian-Li case (2 fans at the front, one at the top and another at the back)

My problem is that in this weather my PC keeps resetting, and it's ruining my gaming fun - is there anything quick, easy and cheap that I can do to cool my system down? or should I just wait until I do a 64-bit upgrade and then add more cooling things?

Not overclocking anything, and the PC has plenty of room to breathe.

Thanks

 

[Bloodrayne]

Asus probe (which I think is lying) says my CPU is currently 65c - this is whilst surfing the t'internet and listening to music.

All fans are turning.

Wouldn't leaving the side of the case effect air flow?

Any suggestions welcome!